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Key-Based Config

A script for interfacing with my Key-Based Config UI.

当前为 2021-08-06 提交的版本，查看 最新版本。

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/419978/957932/Key-Based%20Config.js 

  1. // ==UserScript==
  2. // @name        Key-Based Config
  3. // @author      Callum Latham <callumtylerlatham@gmail.com> (https://github.com/ctl2/key-based-config)
  4. // @exclude     *
  5. // @description A script for interfacing with my Key-Based Config UI.
  6. // @grant       GM.setValue
  7. // @grant       GM.getValue
  8. // ==/UserScript==
  9.  
  10. const FRAME_URL = 'https://callumlatham.com/key-based-config/';
  11. const STYLE = {
  12.     'position': 'fixed',
  13.     'height': '100vh',
  14.     'width': '100vw'
  15. };
  16.  
  17. let isOpen = false;
  18.  
  19. function kbcConfigure(storageKey, title, metaTree, customStyle = {}) {
  20.     return new Promise((resolve, reject) => {
  21.         if (isOpen) {
  22.             reject(new Error('A Key-Based Config iFrame is already open.'));
  23.         } else if (typeof GM.getValue !== 'function' || typeof GM.setValue !== 'function') {
  24.             reject(new Error('The key-based config script requires GM.getValue and GM.setValue permissions.'));
  25.         } else {
  26.             const iframe = document.createElement('iframe');
  27.             const style = {
  28.                 ...STYLE,
  29.                 ...customStyle
  30.             }
  31.  
  32.             iframe.src = FRAME_URL;
  33.  
  34.             for (const [property, value] of Object.entries(style)) {
  35.                 iframe.style[property] = value;
  36.             }
  37.  
  38.             window.document.body.appendChild(iframe);
  39.  
  40.             isOpen = true;
  41.  
  42.             // Listen for iFrame communication
  43.             window.addEventListener('message', async (message) => {
  44.                 switch (message.data.event) {
  45.                     case 'open':
  46.                         // Pass initialisation data
  47.                         const valueForest = await GM.getValue(storageKey);
  48.  
  49.                         iframe.contentWindow.postMessage({
  50.                             title: title,
  51.                             metaTree: metaTree,
  52.                             valueForest: valueForest === undefined ? [] : valueForest
  53.                         }, '*');
  54.  
  55.                         break;
  56.  
  57.                     case 'close':
  58.                         // Close iFrame
  59.                         isOpen = false;
  60.                         iframe.remove();
  61.  
  62.                         window.setTimeout(() => {
  63.                             // Save changes
  64.                             GM.setValue(storageKey, message.data.valueForest);
  65.  
  66.                             // Resolve promise
  67.                             resolve(message.data.valueForest);
  68.                         }, 1);
  69.  
  70.                         break;
  71.  
  72.                     case 'error':
  73.                         // Close iFrame
  74.                         isOpen = false;
  75.                         iframe.remove();
  76.  
  77.                         // Resolve promise
  78.                         reject(message.data.reason);
  79.  
  80.                         break;
  81.  
  82.                     default:
  83.                         // No need to error the promise here; I'm probably just observing a message from another script
  84.                         console.warn(`Unrecognised message 'event' value observed by key-based config script: '${message.data.type}'`);
  85.                 }
  86.             });
  87.         }
  88.     });
  89. }